A long horizontal mirror is next to a vertical screen (See figure). Parallel light rays are falling on the mirror at an angle α from the vertical. If a vertical object of height h is kept on the mirror at a distance d h tan ( α ) . The length of the shadow of the object on the screen would be

Question

A long horizontal mirror is next to a vertical screen (See figure). Parallel light rays are falling on the mirror at an angle α from the vertical. If a vertical object of height h is kept on the mirror at a distance d > h tan ( α ) . The length of the shadow of the object on the screen would be, h /2, h tan ( α ), 2 h ., 4 h

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